Just got my 2600K a couple days ago. Got it up to 4.6Ghz as of right now. I haven't tried anything higher yet and haven't had any stability problems. I haven't even tried any manual adjustments, everything on auto but PLL set to disabled and VRM to 350(and of course manual multi). The max VID in StopThrottle is showing 1.36v and it peaks at 1.352 or 1.36v actual in all the monitors I have used. I rely on StopThrottle for most of my monitoring, it updates super fast if you click the More data button and is extremely accurate, though I put some other monitors up just for redundancy.
I could probably get it down lower voltage if I set them manually, but not going to worry about it till I see what my max multi is going to be first. I haven't ran Prime for more than about an hour without stopping, but have passed 20-pass normal Linx using 3GB ram and 20 pass AVX LinX using 2GB ram. Temps maxxed out at 79 on highest core in normal LinX and like 84 on AVX. Haven't got my ducting hooked up yet, so those will come down. I'll try to get a Prime screenshot after leaving it running the rest of the night. Here is a Linx run a bit earlier.
Edited by Strat79 - 7/11/11 at 1:15am